Error Code IE

Water Inlet Error

What This Means

Correct water level (24.6 kHz) not reached within 8 minutes after water is supplied; Preset water level not reached within 20 minutes; Air chamber or tube is clogged; Inlet valve filter clogged with foreign material; Inlet valve connectors broken or loose; Inlet valve assembly resistance out of range (should be 0.8-1.2 kOhm); Connector to MAIN PWB disconnected (NA2, NA4, BL3); Water level frequency below 24.6 kHz indicating fill issue; Pressure switch faulty; Main harness open circuit

How to Fix

1. 1

   Check if IE is displayed on the control panel

2. 2

   Press WASH/RINSE and DELAY WASH simultaneously; check if water level frequency is below 24.6 kHz

3. 3

   If YES: check air chamber and tube for clogging; clean or replace

4. 4

   If NO: check if filter inlet valve is clogged with foreign material; clean or replace filter

5. 5

   Check if inlet valve connectors are broken or loose; reconnect or repair connector

6. 6

   Measure resistance between each terminal of inlet valve assembly — should be 0.8-1.2 kOhm (ref section 9-5 inlet valve assembly); if out of range, replace INLET VALVE ASSEMBLY

7. 7

   Check voltage at inlet valve connector — should be 120 VAC; if yes, replace INLET VALVE ASSEMBLY

8. 8

   Check connectors NA2, NA4, BL3 on MAIN PWB; reconnect or repair if disconnected

9. 9

   Check wiring per section 9-5 wiring diagram; if incorrect, replace MAIN HARNESS

10. 10

    After reconnecting connectors, check water level frequency again; if below 24.6 kHz, check PRESSURE SWITCH

11. 11

    If all above pass, replace MAIN PWB ASSEMBLY

12. 12

    Installation safety checks: verify no water tap leakage, no water tap freeze, no entanglement or shortage of water supply hose, no shrinkage due to misuse of hot/cold water, no hose leakage

This Error Applies To

LG WM3700H Series Washers (2016) (2016–present)